10
TX Second Stage Regulator Maintenance Manual
11
TX Second Stage Regulator Maintenance Manual
12. Slide a new, lubricated ‘O’ ring (8) down the threaded
end of the Valve Spindle. Screw the Heat Exchanger (6),
hexagon facing outward, onto the Valve Spindle until nger
tight. Using an 11/16” crows foot or deep socket, tighten to
a torque of 3 Nm (2.2 lbf/ft).
13. Fit a new, lubricated ‘O’ ring (18) onto the Seat (17). Press
the Seat, threaded end rst, into the Valve Spindle. Using
the Slotted Seat Adjuster Tool, push the Seat into the Valve
Spindle as far as it will go.
14. While holding the rim of the Case at eye level, turn the
Seat in (clockwise) until the Lever drops about 4mm
((0.157”)below the Case rim. Then, turn the Seat anti-
clockwise until the Lever is level with the Case rim.
CAUTION: Ensure Diaphragm is seated correctly
and not creased.
16. Place the small diameter end of the Spring (3) onto the
Purge Button (2). Orient the Case Cover with the slotted
openings pointing to the right. Properly align the Purge
Button and press it into the Case Cover until it snaps into
place.
Fitting Diaphragm
Before tting hose, carry out suction test by holding thumb
over Valve Spindle (20) to seal and trying to breathe
through mouthpiece outlet port. No air should be drawn in.
17. Screw the Case Cover (4) onto the Case. Using the Cover
Tool (p/n AT31) tighten the Cover until it stops. Conrm
that the Purge Button is properly aligned.
CAUTION: Excessive tightening of the Heat
Exchanger will damage the two ats inside the case.
15. Position the Diaphragm (7) into the Case (9). Using your
nger, work the edges of the Diaphragm into place so it sits
evenly in the Case . Install the Diaphragm Cover (5) into the
Case, over the Diaphragm.
CAUTION: Ensure that the Lever is vertical after
tightening.
To Next Page
Loading...
Need help?
General
